1. Matching: match the items in the right column by writing in the CAPITAL
letter of a selection from the items in the left.

A.
Dalton _____ 6.022
x 1023

B.
Petrucci _____
10B,
11B

C. nano
_____ RNHR

D.
Avogadro _____ 10-6

E.
Rutherford _____ M

F.
ether _____ ROH

G.
alcohol _____ 10-9

H. 2°
amine _____ nuclear
atom

I. moles
solute per liter solution _____ Hill

J.
isotopes _____ ROR

H.
micro _____
atomic theory

2. Two atoms are
154 pm apart. Express this distance in cm, using scientific notation.

3. a.
Determine the molar mass of (NH4)2SO4 to five
significant figures. Include with your answer the units for molar mass.

b. Name
(NH4)2SO4
__________________________________________

c. How
many individual atoms of H are there in 4.32 g of (NH4)2SO4?

4. Complete the
following table. In the first row, E stands for an element you need to
identify. On the second row, write the complete symbol for the species.

Symbol

# protons

# neutrons

# electrons

net charge

Name of
element

+2

16

16

18

5. A bottle
contains 500.0 mL of ketchup (catsup for some of us). The density of ketchup is
1.4 g/mL. What is the mass of the ketchup in the bottle, in kg?
Express answer with the correct number of significant figures and units.

6. Name the
following compounds, or provide the correct formula (structural formula where
necessary).

a.
chromium(III) sulfite_______________________________________

b. sodium
sulfide _______________________________________

c.
perchloric acid _____________________________________________

d. hexyl
propanoate _______________________________________

e.nonane
_______________________________________

f.CH3CH2CH2CH2COOH
_________________________________________

g.AuCl4_____________________________________

h.Mg(NO3)2
________________________________________________

7. Balance the
following reaction equations:

a. ____ Ca3(PO4)2
+ ____ H2SO4 ____ CaSO4
+ ____ H3PO4

b. ____ C4H10
+ ____ O2 ____ CO2
+ ____ H2O

8. How many grams of CuCl2.2H2O
(F.W. = 170.48) are needed to prepare 250 mL of 4.0 M CuCl2 solution?

9. If 20 mL of
18 M H2SO4 is diluted with water to a final volume of
0.500 L, what is the resulting molarity of the H2SO4?

11. Write the
molecular formula and give the name for the compound represented by the
following “stick figure:”

Formula__________________
Name ________________________________

12. A
carbohydrate having a molar mass of 360 g/mol is analyzed to have the empirical
formula CH2O. What is the molecular formula of this compound?

13. The following
equation represents a way of making beryllium nitride:

3 Be(OH)2
+ 2 NH3 6 H2O
+ Be3N2

a. How
many grams of Be(OH)2 (F.W.
= 43.03) would be needed in order to produce 125 g of Be3N2?

b.If, in an attempt to run this reaction as described in part (a), 120 g of
Be3N2 was
actually collected, what was the percent yield of the reaction?

c. In a
completely different experiment to run the reaction above, 50.0 g of Be(OH)2 and
50.0 g of NH3
mixed. What is the maximum yield of Be3N2,
in grams, that can be synthesized, assuming 100% yield?